CN102142166B - Driving circuit of color changing ink recognition device in currency count machine - Google Patents
Driving circuit of color changing ink recognition device in currency count machine Download PDFInfo
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- CN102142166B CN102142166B CN201110092442A CN201110092442A CN102142166B CN 102142166 B CN102142166 B CN 102142166B CN 201110092442 A CN201110092442 A CN 201110092442A CN 201110092442 A CN201110092442 A CN 201110092442A CN 102142166 B CN102142166 B CN 102142166B
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Abstract
The invention provides a driving circuit of a color changing ink recognition device in a currency count machine. The driving circuit comprises a CIS (Contact Image Sensor) image sensor, a CIS image signal analog-digital conversion module, a CIS image signal preprocessing module, a CIS control signal generator, an LED (Light Emitting Diode) driver, an LED control signal generator and an image signal processor system, wherein the CIS image sensor is used for acquiring images of paper currency at two reflecting angles; the CIS image signal preprocessing module is used for preprocessing a signal output by the CIS image signal analog-digital conversion module; the LED control signal generator is used for generating a control signal of an LED and applying the control signal to the LED driver; the CIS control signal generator is used for outputting a time sequence control signal to the CIS image signal analog-digital conversion module; and the image signal processor system is used for processing a CIS image signal processed by the CIS image signal preprocessing module to acquire two paper currency images so as to identify authenticity of the paper currency.
Description
Technical field
The invention belongs to the paper money counter field, relate in particular to the driving circuit of the color shifting ink recognition device in a kind of paper money counter.
Background technology
Along with expanding economy, money flow is more and more frequent, and thing followed false making molecule is also more and more rampant.The counterfeit money of false making molecule utilization high-tech technology made is really true to life, and for example serial number is with the mechanism version counterfeit money of HD90 beginning etc.
The inventor is in the process of research guiding against false of paper currency; In the process that some regional printing ink on the discovery genuine note is observed under the angle with 20 degree-70 degree changes; The color of pattern wherein or numeral can change; For example on the bank note of 100 yuan of face amounts, the color of " 100 " printed words when the observation of different angles in the positive lower left corner is different, and counterfeit money still can't imitate at present herein.
Based on such discovery; Can manually rock the angle of bank note at present by the people; And through the pattern color that visual inspection bank note looks from different perspectives, judge the true and false of bank note according to this, but the method for this desk checking forge or true or paper money is very time-consuming and effort; Especially the very frequent and large amounts of mechanism for money flows such as banks, the time and efforts that adopts this check system to spend can't allow.
Summary of the invention
In view of this, the object of the present invention is to provide the driving circuit of the color shifting ink recognition device in a kind of paper money counter, can drive the paper money counter that inside has the color shifting ink recognition device, for the true and false of this paper money counter fast detecting bank note provides support condition.
For realizing above-mentioned purpose; One embodiment of the present of invention provide the driving circuit of the color shifting ink recognition device in a kind of paper money counter, comprise CIS imageing sensor, CIS picture signal analog-to-digital conversion module, CIS picture signal pre-processing module, CIS control-signals generator, led driver, LED control-signals generator and image-signal processor system;
Said CIS imageing sensor is used for obtaining from two kinds of reflection angles the image of bank note;
The picture signal that said CIS picture signal analog-to-digital conversion module is used for the CIS imageing sensor is obtained is the form of digital signal by the formal transformation of simulating signal;
Said CIS picture signal pre-processing module is used for the signal of CIS picture signal analog-to-digital conversion module output is carried out pre-service;
The LED that said led driver is used in the color shifting ink recognition device drives;
Said LED control-signals generator is used to produce the control signal of LED, and it is applied to led driver, makes its correspondingly driving LED work;
Said CIS control-signals generator is used for to CIS picture signal analog-to-digital conversion module output timing control signal;
Said image-signal processor system links to each other with CIS picture signal pre-processing module; The CIS picture signal that is used for passing through after CIS picture signal pre-processing module is managed is everywhere handled; Obtain two width of cloth banknote image, comprehensively discern, distinguish the true and false of bank note through printing ink.
Preferably, said image-signal processor system comprises:
The odd even separative element is used for that the CIS picture signal after managing through CIS picture signal pre-processing module is carried out odd even everywhere and separates;
The image synthesis unit is used for the signal that separates through the odd even separative element is synthesized respectively, and obtains two width of cloth images of bank note;
Bank note edge recognition unit is used to discern the unit of bank note;
The Paper Money Size computing unit is used to calculate the size of bank note;
Value of money version recognition unit is used to discern the value of money and the version of bank note;
Bank note is towards recognition unit, be used to discern bank note towards;
Color shifting ink zone location unit is used to locate the color shifting ink zone of banknote image;
The first color ink recognition unit is used for discerning first kind of color ink in color shifting ink zone;
The second color ink recognition unit is used for discerning second kind of color ink in color shifting ink zone;
The forge or true or paper money discriminating unit is used for the result that the comprehensive first color ink recognition unit and the second color ink recognition unit are discerned, and judges the true and false of bank note.
Preferably, the said first color ink recognition unit is the green ink recognition unit, is used for discerning the green ink in color shifting ink zone; The said second color ink recognition unit is the blue ink recognition unit, is used for discerning the blue ink in color shifting ink zone.
Preferably, also comprise the master controller system, said master controller system links to each other with said image-signal processor system through host interface bus, is used for obtaining fast the result of image-signal processor system.
Preferably, said master controller system also links to each other with CIS picture signal pre-processing module, CIS control-signals generator and LED control-signals generator, is used for transmitting control signal to it.
Preferably, said CIS picture signal pre-processing module, CIS control-signals generator and LED control-signals generator realize through programmable gate array.
Preferably, also comprise the LCD touch display screen, said LCD touch display screen links to each other with the master controller system, is used to the result that shows that the master controller system gets access to, also receives the steering order of user through the touch-screen input simultaneously, is passed to the master controller system.
The driving circuit that the embodiment of the invention provides can drive the paper money counter that inside has the color shifting ink recognition device, and the true and false that detects bank note for paper money counter provides support condition.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the synoptic diagram of the driving circuit of color shifting ink recognition device in the paper money counter provided by the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The inventor thinks and utilized number of times maximum at paper money counter by whole link carefully having investigated the whole procedure links of bank note, especially financial field such as bank.Therefore in paper money counter, adding a kind of special device, to be used for the true and false of identification note be feasible and rational.Based on above-mentioned consideration; In paper money counter, increase a kind of color shifting ink recognition device; This device is through the design of light path; Realization receives the reflected image of bank note from two kinds of different angles and since genuine note have a color shifting ink zone, the true and false of printing ink identification note that therefore can be through comparison two width of cloth reflected images.Such color shifting ink recognition device needs the driving circuit of particular design to work, and the present invention proposes to satisfy the driving circuit of color shifting ink recognition device in the paper money counter that requires so just.
Fig. 1 shows the synoptic diagram of the driving circuit of color shifting ink recognition device in the paper money counter provided by the invention.This driving circuit comprises CIS (contact-type image sensor) imageing sensor 1, CIS picture signal analog-to-digital conversion module 2, CIS picture signal pre-processing module 41, CIS control-signals generator 42, led driver 3, LED control-signals generator 43 and image-signal processor system 5.
Wherein, CIS imageing sensor 1 is used for obtaining from two kinds of reflection angles the image of bank note; The picture signal that CIS picture signal analog-to-digital conversion module 2 is used for CIS imageing sensor 1 is obtained is the form of digital signal by the formal transformation of simulating signal.CIS picture signal pre-processing module 41 is used for the signal of CIS picture signal analog-to-digital conversion module 2 outputs is carried out pre-service.
Led driver 3 links to each other with CIS imageing sensor 1, and the LED that is used in the color shifting ink recognition device drives, and can be the amplifier that drive signal is amplified in reality.LED control-signals generator 43 is used to produce the control signal of LED; And it is applied to led driver; Make its correspondingly driving LED work, this moment, the effect of led driver 3 was the drive signal that LED control-signals generator 43 produces is amplified and is applied on the LED.
CIS control-signals generator 42 links to each other with CIS imageing sensor 1, is used for to CIS picture signal analog-to-digital conversion module output timing control signal.
Image-signal processor system 5 links to each other with CIS picture signal pre-processing module 41; The CIS picture signal that is used for passing through after CIS picture signal pre-processing module is managed is everywhere handled; Obtain two width of cloth banknote image, comprehensively discern, distinguish the true and false of bank note through printing ink.
According to the actuating logic of image-signal processor system 5 inside, image-signal processor 5 can comprise like lower module: odd even separative element, image synthesis unit, bank note edge recognition unit, Paper Money Size computing unit, value of money version recognition unit, bank note are towards recognition unit, color shifting ink zone location unit, the first color ink recognition unit, the second color ink recognition unit and forge or true or paper money discriminating unit.
Wherein, the odd even separative element is used for the CIS picture signal after everywhere managing through CIS picture signal pre-processing module is carried out the odd even separation; The image synthesis unit is used for the signal that separates through the odd even separative element is synthesized respectively, and obtains two width of cloth images of bank note; Bank note edge recognition unit is used to discern the unit of bank note; The Paper Money Size computing unit is used to calculate the size of bank note; Value of money version recognition unit is used to discern the value of money and the version of bank note; Bank note towards recognition unit be used to discern bank note towards; Color shifting ink zone location unit is used to locate the color shifting ink zone of banknote image; The first color ink recognition unit is used for discerning first kind of color ink in color shifting ink zone; The second color ink recognition unit is used for discerning second kind of color ink in color shifting ink zone; The forge or true or paper money discriminating unit is used for the result that the comprehensive first color ink recognition unit and the second color ink recognition unit are discerned, and judges the true and false of bank note.
Different according to Currency Type and value of money and version, the printing ink of two kinds of colors that the color shifting ink zone of above-mentioned bank note comprises may be different, the most common ground, the color shifting ink zone of bank note comprises green ink and blue ink.At this moment, the first color ink recognition unit is the green ink recognition unit, is used for discerning the green ink in color shifting ink zone; The second color ink recognition unit is the blue ink recognition unit, is used for discerning the blue ink in color shifting ink zone.
Need to prove that above-mentioned CIS picture signal pre-processing module 41, CIS control-signals generator 42 and LED control-signals generator 43 can realize through programmable gate array in reality.
In addition, the driving circuit among the present invention can also comprise master controller system 6, and this master controller system links to each other with image-signal processor system 5 through host interface bus, is used for obtaining fast the result of image-signal processor system 5.
In addition, master controller system 6 can also link to each other with CIS picture signal pre-processing module 41, CIS control-signals generator 42 and LED control-signals generator 43, is used for transmitting control signal to these modules.
For the aspect shows and control; Can also set up LCD touch display screen 7, this LCD touch display screen 7 links to each other with master controller system 6, is used to the result that shows that the master controller system gets access to; Also receive the steering order of user simultaneously, be passed to master controller system 6 through the touch-screen input.
In addition, master control system 6 can also be controlled the gear train of paper money counter simultaneously, to system's gear train output drive signal.
The driving circuit of color shifting ink recognition device can drive for the color shifting ink recognition device of two kinds of concrete structures in the paper money counter among the present invention; A kind of color shifting ink recognition device adopts a light source; Two photoelectric sensors, another kind of color shifting ink recognition device adopts two light sources and a sensor.
When the color shifting ink recognition device adopts a light source and two photoelectric sensors; The image information that 42 pairs of two photoelectric sensors of CIS control-signals generator receive is switched line by line, and 5 pairs of image informations of having switched of image-signal processor system are carried out odd even and separated.
When the color shifting ink recognition device adopted two light sources and a sensor, the driving of 43 pairs of two light sources of LED control-signals generator was switched line by line, and 5 pairs of image informations of having switched of image-signal processor system are carried out odd even and separated.
To sum up, driving circuit provided by the invention is supported the color shifting ink recognition device of above-mentioned two kinds of concrete structures.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (6)
1. the driving circuit of color shifting ink recognition device in the paper money counter; It is characterized in that, comprise CIS imageing sensor, CIS picture signal analog-to-digital conversion module, CIS picture signal pre-processing module, CIS control-signals generator, led driver, LED control-signals generator and image-signal processor system;
Said CIS imageing sensor is used for obtaining from two kinds of reflection angles the image of bank note;
The picture signal that said CIS picture signal analog-to-digital conversion module is used for the CIS imageing sensor is obtained is the form of digital signal by the formal transformation of simulating signal;
Said CIS picture signal pre-processing module is used for the signal of CIS picture signal analog-to-digital conversion module output is carried out pre-service;
The LED that said led driver is used in the color shifting ink recognition device drives;
Said LED control-signals generator is used to produce the control signal of LED, and it is applied to led driver, makes its correspondingly driving LED work;
Said CIS control-signals generator is used for to CIS picture signal analog-to-digital conversion module output timing control signal;
Said image-signal processor system links to each other with CIS picture signal pre-processing module, comprising:
The odd even separative element is used for that the CIS picture signal after managing through CIS picture signal pre-processing module is carried out odd even everywhere and separates;
The image synthesis unit is used for the signal that separates through the odd even separative element is synthesized respectively, and obtains two width of cloth images of bank note;
Bank note edge recognition unit is used to discern the unit of bank note;
The Paper Money Size computing unit is used to calculate the size of bank note;
Value of money version recognition unit is used to discern the value of money and the version of bank note;
Bank note is towards recognition unit, be used to discern bank note towards;
Color shifting ink zone location unit is used to locate the color shifting ink zone of banknote image;
The first color ink recognition unit is used for discerning first kind of color ink in color shifting ink zone;
The second color ink recognition unit is used for discerning second kind of color ink in color shifting ink zone;
The forge or true or paper money discriminating unit is used for the result that the comprehensive first color ink recognition unit and the second color ink recognition unit are discerned, and judges the true and false of bank note.
2. the driving circuit of color shifting ink recognition device is characterized in that in the paper money counter according to claim 1, and the said first color ink recognition unit is the green ink recognition unit, is used for discerning the green ink in color shifting ink zone; The said second color ink recognition unit is the blue ink recognition unit, is used for discerning the blue ink in color shifting ink zone.
3. according to the driving circuit of color shifting ink recognition device in any described paper money counter in the claim 1 to 2; It is characterized in that; Also comprise the master controller system; Said master controller system links to each other with said image-signal processor system through host interface bus, is used for obtaining fast the result of image-signal processor system.
4. the driving circuit of color shifting ink recognition device in the paper money counter according to claim 3; It is characterized in that; Said master controller system also links to each other with CIS picture signal pre-processing module, CIS control-signals generator and LED control-signals generator, is used for transmitting control signal to it.
5. according to the driving circuit of color shifting ink recognition device in any described paper money counter in the claim 1 to 2; It is characterized in that said CIS picture signal pre-processing module, CIS control-signals generator and LED control-signals generator realize through programmable gate array.
6. the driving circuit of color shifting ink recognition device in the paper money counter according to claim 4; It is characterized in that; Also comprise the LCD touch display screen, said LCD touch display screen links to each other with the master controller system, is used to the result that shows that the master controller system gets access to; Also receive the steering order of user simultaneously, be passed to the master controller system through the touch-screen input.
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| CN201110092442A CN102142166B (en) | 2011-04-13 | 2011-04-13 | Driving circuit of color changing ink recognition device in currency count machine |
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| CN201110092442A CN102142166B (en) | 2011-04-13 | 2011-04-13 | Driving circuit of color changing ink recognition device in currency count machine |
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| CN102142166B true CN102142166B (en) | 2012-10-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102324133A (en) * | 2011-08-10 | 2012-01-18 | 深圳市怡化电脑有限公司 | Contact image sensor module for banknote recognition |
| CN102855682A (en) * | 2012-09-06 | 2013-01-02 | 上海古鳌电子科技股份有限公司 | Image acquisition device |
| CN104240364A (en) * | 2013-06-14 | 2014-12-24 | 张枫 | RMB paper currency number recording system |
| CN103679917A (en) * | 2014-01-06 | 2014-03-26 | 成都术有科技有限公司 | High-speed banknote serial number extraction and identification system based on FPGA (field programmable gate array) and implementation method thereof |
| CN103971454A (en) * | 2014-05-22 | 2014-08-06 | 昆山古鳌电子机械有限公司 | Paper currency processing device |
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| JP2008224557A (en) * | 2007-03-15 | 2008-09-25 | National Printing Bureau | Inspection method and inspection device of infrared absorption print area printed in infrared absorption ink |
| CN101727702B (en) * | 2009-11-17 | 2011-11-23 | 李成福 | ATM money receiving module having RMB color changed ink identification function |
| CN201673546U (en) * | 2010-01-20 | 2010-12-15 | 上海古鳌电子机械有限公司 | Image identifying device of paper currency sorter |
| CN101986353A (en) * | 2010-11-02 | 2011-03-16 | 北京新岸线软件科技有限公司 | Multi-angle optical characteristic detection method and device |
| CN201984565U (en) * | 2011-04-13 | 2011-09-21 | 张文峰 | Drive circuit of discoloring printing ink identification device of currency count machine |
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Denomination of invention: Driving circuit of color changing ink recognition device in currency count machine Effective date of registration: 20141021 Granted publication date: 20121017 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: Zhang Wenfeng Registration number: 2014990000872 |
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Denomination of invention: Driving circuit of color changing ink recognition device in currency count machine Effective date of registration: 20160331 Granted publication date: 20121017 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: Zhang Wenfeng Registration number: 2016990000255 |
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